Thunderbird
thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. the project strategy is modeled after mozilla firefox.
WeeChat is a fast, light and extensible chat client. It runs on many platforms (including Linux, BSD and Mac OS).
weechat is a fast, light and extensible chat client. it runs on many platforms (including linux, bsd and mac os).
weechat is: modular: a lightweight core with plugins around multiprotocols: irc and jabber (other soon) extensible: c plugins and scripts (perl, python, ruby, lua, tcl and scheme) free software: released under gplv3 license fully documented: user's guide, api, faq,.. translated in many languages
source code : https://github.com/eirikb/weecloud
Extensible by Plugins/Extensions Multiple protocols Modular System Command line interface
Productivity Developer Tools Social
extensible chat-clients im-client irc jabber multi-protocol xmpp modular-system command-line-interface chat-xfce
thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. the project strategy is modeled after mozilla firefox.
Free Open Source Windows Linux BSD Mac Haiku
XChat is an IRC chat program for both Linux and Windows. It allows you to join multiple IRC channels (chat rooms) at the same time, talk publicly, private one-on-one conversations etc. Even file transfers are possible. .
Free Open Source Windows Linux
A freeware build of X-Chat for windows, as opposed to the official 30-day-trial shareware Windows build.
Free Windows
Konversation is an easy-to-use IRC client for novices, nut novices and experts can take advantage of its rich featureset.
Free Open Source Linux